See also:

• Arts: Crafts: Jewelry: Gemstones  (2)
• Business: Construction and Maintenance: Materials and Supplies: Masonry and Stone: Natural Stone  (423)
• Shopping: Recreation: Science and Nature  (331)

	Collecting Rocks - USGS information on collecting rocks.
	Eastern (USA) Minerals Resources - Gateway to information on minerals and mineral resources research in the eastern United States.
	GeMin Exhibition - GeMin exhibition and online copipes of the Oryktologia NEA news.
	Minerals of the United States - Click on the map to view pictures of minerals found in the chosen state.
	Perlite - Pictures, links, and a brief description of the properties and applications of this siliceous rock.
	Rakovan, John - Professor in the Department of Geology at Miami University, Oxford, OH. Includes information on Dr. Rakovan's research and teaching in mineralogy and geochemistry.
	The Rock Gallery - Geological display of images and information including crystals, minerals and gems.
	The Rock, Mineral, and Fossil Reference - Contains over 100 pictures of minerals, rocks and fossils, as well as information about classification, identification, the Science Olympiad Rocks and Minerals event and related topics.
	Salt (MRBloch Archive) - A collection of material relating to salt [NaCl] and its influence on civilization. Includes sections on physiology, geology, archeology, palaeoclimatology, palaeogeography, production, religion, economics, and etymiology of salt.

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